Question

What will be the radix value if the string begins with 0x?

(a) 13

(b) 14

(c) 15

(d) 16

This question was addressed to me during a job interview.

The origin of the question is Parsing Values using JavaScript in chapter Parsing, Benchmarking and Logging of JavaScript

Answer 1

The correct choice is (d) 16

To explain I would say: If the string begins with 0x, then the radix value will be 16. If the string begins with “0”, the radix is 8 (octal). If the string begins with any other value, the radix is 10 (decimal).